Frequently asked questions
How can I find answers to other questions I might have?
Below is a list of some of the more common questions that we get asked. If your question isn't listed below then feel free to get in touch via email or give us a call. Our email address is: firstname.lastname@example.org and our telephone number is 01761 463102. You can be assured of a prompt, courteous and informative response.
Do I need some sort of base other than a flat level surface?
Yes, except for Robinsons, Janssens and timber greenhouses featured in this brochure. All other models require a raised edge profile which can be of brick or concrete blocks although metal bases are available providing a cost-effective convenient alternative.
My garden is on an incline. What sort of base do I need?
Any of the above. A brick or block profile can be built from the highest point outwards to bring the site to level or soil can be removed from the lowest point into the incline to form a level surface often creating an interesting and appealing feature in the process.
What choices do I have for glazing a greenhouse?
3mm horticultural glass is standard supply for some greenhouses with options of toughened safety glass and polycarbonate whilst the 'top-of-the-range' models have 4mm toughened glass as standard. Greenhouse toughened glass is actually SAFETY GLASS in that it crumbles into small particles when broken - much like a car windscreen. It's available as grade 'A' or 'B'. The former, although costing a little extra, has a much higher impact than the latter. Almost all our toughened glass is grade 'A'. Polycarbonate glazing offers safety and increased insulation although should be avoided if greenhouse is likely to be subjected to strong winds and/or extreme weather conditions.
What surface do I need to be able to erect a greenhouse?
Although a flat level surface is essential, it can be of soil, grass, patio slabs, concrete or a combination of all of these.
Are there any alternatives to standard metal glazing clips?
Certainly! Quality greenhouses such as Robinsons use a colour co-ordinated UPVC bar-capping system to hold the glass in place without the use of clips whilst the 'top-of-the- range' Janssens use heavy duty neoprene rubber to do the same. Both feature in this brochure and are supplied as standard. Some other models are available with UPVC bar capping as an option.
Is there any advantage having full length toughened glass instead of multi-panes?
Yes. Full length glass, having no overlaps eliminates the potential for algae growth and draughts in these areas making for a warmer greenhouse and cleaning a whole lot easier. 'Glass-slip' is virtually eliminated as the panes fit-to-frame perfectly giving added rigidity to the structure.
How much ventilation should I have in my greenhouse?
As much as possible. The more means you have to ventilate the greater the control of temperature. Consider extra roof and side louvre vents or even an extra door at the rear for added ventilation whether or not used as a point of access. An unattended greenhouse on a hot summer's day is potentially just as damaging as an unguarded cold frosty night. Consider too automatic openers for both roof and louvre vents for convenience and 'peace-of mind' especially if the greenhouse is likely to be left unattended for any period of time.
Are there any benefits having a Dwarf Wall model?
As well as looking good, a low height wall will absorb and release heat long after the sun has gone down whilst remaining cooler during hot summer days with less dramatic fluctuations in temperature. It's worth considering the Janssens, Robinsons,Alton and Elite Thyme and Dwarf wall Feature models at no extra cost with the assurance that money spent is wholey in the product and not in the labour costs involved fabricating or altering existing frames.